couzens



(N0 Model.) 2 Sheets-Sheet 1.

G. OOUZENS.

.GULLY TRAP.

'No. 486,177. Patented Nov. 175, 1892.

UNITED STATES PATENT OFFICE.

GEORGE couznns, or CARDIFF, ENGLAND.

G U L LY T R A P SPECIFICATION forming part of Letters Patent No.486,177, dated November 15, 1892.

Application filed February 28, 1892- Serial No.422,503. (No model.)Patented in England December 19, 1891, No. 22,256, and in France May 19,1892,1Io.219,475-

T0 at whom it may concern.-

Be it known that I, GEORGE OoUzENs, builder, a subject of the Queen ofGreat Britain and Ireland, residing at 14 Tudor Street, Cardiff,England, (Wales,) have invented Improvements in Gully-Traps, (for whichI have obtained a patent in England, No. 22,256, of December 19, 1891,and in France, No. 219,475, of May 19, 1892,) of which the following isa specification.

This invention relates to the traps placed in the floors ofkitchen-cellars, 850., and is designed to prevent any backfiow of wateror obnoxious gases, while at the same time allowing the easy passage ofwater to the drains. It is'especially applicable to seaside towns, whereat high tide the water sometimes rises above the level of thecellar-floors and floods them.

According to this invention I use an outer casing of earthenware, inwhich an iron frame supporting a movable grating can be readilyinserted, the iron frame being circular and having at its base anindia-rubber ring, against which a hollow copper ball abuts whensupported by the water below, the ball completely closing the passagefrom the trap to the atmosphere when the water is atits ordinary height,forming the seal of the trap, excepting when water is poured through thegrating, when the weight of the water depresses the ball and the waterflows through the opening made.

In situations where the trap might get dry I employ another ring ofindia-rubber, placed at the bottom of the trap, and against which theball rests, closing the passage when the trap is dry. A suitableguiding-piece on each side of the casing directs the ball onto its seat.The weight of the ball thus prevents any light back -draft of foul airpassing through the grating, and immediately sufficient water enters thetrap to form the water seal the ball is floated back to its original position.

Referring to the accompanying drawings, Figure 1 is a vertical sectionof the trap; Fig. 2, a plan, and Fig. 3a detail view showing the guidesfor directing the ball onto the lower ring in section.

A is the casing forming the water-trap, to

which the frame B, supporting the grating C, is attached. A flange Aextends round the inside of the casing A, mutilated in two places Aopposite to each other. The upper part of B is fiangedat B, and twoprojections B are formed on the frame, which when it is to be insertedare passed through the openings A and the frame turned in eitherdirection, so that the flange A holds the iron frame and prevents itfrom falling into the earthenware trap. At the lower part of the frameis fixed the india-rubber ring D, against which the hollow ball E isheld by the water in the trap, the ball being guided thereto by thebell-mouth end B of the frame. When the water is at the height shown,the ball is supported with sufficient force just to press against thering D, so that a slight weight on top of the ball will force itdownward and create a passage through the frame. The ball and ring will,however, support a small quantity of water, which will make anadditional seal and still further secure the trap from any through draftof obnoxious air. Any rising in the water through a backflow or othercause will force the ball up and close the passage tightly, effectuallypreventing any Water rising through the gratings. If the waterevaporates, the ball will fall and rest upon the ring F, closing thepassage at that point. Two guides G are provided, which direct the ballonto the ring F.

What I claim as my invention, and desire to secureby Letters Patent, is

In a gully-trap, the combination of a copper ball E, rubber ring D, heldin a frame B, with bell-mouth B supported by the casing A and heldtherein by means of the flanges A and B and the projections B the rubberring F, fixed in an inclined position at the bottom of the trap, andguides G, all substantially as described, and for thepurposes specifled.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

GEORGE OOUZENS. Witnesses:

J NO. A. DAY, Clerk, Freehold, Llcmdafi.

A. DAVIES,

Solicitors 026m, 24 Francis Street, Omar.

